William don



(Remodel.) Y

W. DON.v Gar Axle Box'.

Pate-'med Aprii 26,1881.

NPEYERSfPNOTO-UTHOGR'AHER, WASHINGTON. D C.

NITED STATES PATENT OFFICE.

WILLIAM DON, OF NEW YORK, AssieNOn To WILLIAM WHITE, on WHITE PLAINS, N. Y.

OAR-AxLE Box.

sPEcIFIeA'rIoN forming part of Letters Patent Nofaiom, dated April 2e, 1881. Application inea Maren 5, resi. (NO model.)

To all whom it may concern:

Be it known that I, WILLIAM DON, a citizen ofthe United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Oar- Axle Boxes, of which the following is a speciiication.

This invention relates to that class of axleboxes which are provided with a verticallymovable plate, on which the axle bears; and the object of my improvement is to protect the bearin g of the axle against dust, and also to simplify the construction of the box, as will be hereinafter more fully described.

My invention is illustrated in the accompanying drawings, in which Figure 1 represents a longitudinal vertical section. Fig. 2 is an end view, showing the inner face of the box partly out away.

Similar letters indicate corresponding parts.

In these drawings, the letter A designates my axle-box, which is made of cast-iron, in the form and manner usually employed for this purpose.

B is the shell, of brass or other composition metal, which iits the journal of the axle O, and is provided on its back with a transverse groove, to engage with a rib, a, on the inner surface of the top of the box A, so as to prevent said shell from moving in the direction ofthe length of the axle.`

A suitable lubricator, D, supplies the journal of the `axle withoil or other lubricating material.

In the front of the box A is an opening, b, which can be closed by a cover, E. The upper edge of this cover engages with a recess,`

c, formed near the top of the box A, and its lower edge is provided with a hole to receive a screw, d, which extends through lugs e c projecting fromithe bottom of the box A.

On the sides of the opening b are formed guide-grooves for the receptionof "the front plate, F, which is intended to bear against the front end of the axle, so as to prevent 1ongitudinal movement.

When the cover E and the front plate, F, are removed, access can be had to the interior of the box.

In the rear plate, G, which is cast solid with the boxA, is an oblon gopenin g, f, large enough to admit the body or collar of the axle inside of its journal and to permit the required play in a vertical direction. g

All the parts which are pointed out in the foregoing description are similar to those used in ordinary axle-boxes, and form no part of m y invention.

On the collar of the axle, ata convenient distance from the rear end of theV journal, is firmly secured a rigid Washer, H, which may be made ot' hard rubber or any other suitable material, and which, when the axle is in position in the box A, bears against the back plate, G, and closes the oblon g opening j' against the entrance of dust. With this washer and the collar of the axle is combined a collar-plate, I, which is provided with a stuffing-box, g, filled with suitable packing material, j, which, when the collar-plate is in position, hugs the collar of the axle and prevents the entrance of dust. The upper edge of the collarplate catches into a recess, lc, formed on the box A, (see Fig. 1,) and its lower end is provided with an oblong hole, Z, through which passes the screwbolt d, so that by this screw-bolt both the collar-plate and the cover E are held in position, and by removing said bolt both these parts are v released. The collarplate I, however, must be so arranged that it permits the axlebox to rise and fall, and this object is attained bythe following means: On the collar-plate is formed a chamber, m, which contains a spring, n, that extends over and bears upon the screw-bolt d, so that by its action the collar-plate is forced upward, leaving the axlebox free, however, to rise and fall, while the packing in the stuffing-box of the collar-plate rmly hugs the collar of the axle. In order to allow this, the head of the screw-bolt d bears upon a metal plate or washer, o, which is free to slide on the rear surface of the chamber m.

It' desired, separate screws or screw-bolts can be used for securing the cover and the col lar-plate in position; but the screw which serves to retain the collar-plate must under all circumstances be so arranged that it allows the box freedom to move up and down, while the packing j hugs the collar of the axle.

What I claim as new, and desire to secure by Letters Patent, is-

1. The axle-box A, provided in the upper portion of its rear end with the vertical recess contained in a chamber formed ou the collar- 70 in combination with the axle and the vertiplate and bearing upon the screw. cally-yielding collar-plate I, having its upper In testimony whereof I have hereunto set end loosely retained Within the recess 7c by the my hand and seal in the presence of two subbolt Which connects the lower end of the colscribing Witnesses.

lar-plate to the axle-box7 substantially as de- VILLIAM DON [L s 1 scribed.

2. The combination, substantially as herein- Vitnesses: before described, of the box A, the axle C, the A. L. A. SMITH, 1o collar-plate I, the screw d, and the spring` n, E. T. LANDON. 

